Miner&#39;s drill.



PATENTED NOV. l2, 1907.

G. F. WEISS.

MINERS DRILL.

APPLICATION FILED rma. 5, 1907.

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sTATEs EATENT oEEIoE.

GEORGE F. WEISS, OF SPRINGFIELD, ILLINOIS, ASSIGNOR TO TI'IE BLACK DIAMOND COAL- DRILL AND TOOL OO., OF SPRINGFIELD, ILLINOIS, A CORPORATION OF ILLINOIS.

MINERS DRILL.

Specification of Letters Patent.

Patented Nov. 12, 1907'.

To a'lZ whom it may concern:

Be it known that I, GEORGE F. Wniss, a citizen of the United States, residing at Springfield, in the county of Sangamon and State of Illinois, have invented cert'ain new and useful Improvements in Miners Drills. of which the following is such a full, clear, and exact description as will enable others skilled in the art to which it appertains to make and use my said invention.

This invention is a modification and improvement of the invention set forth in United States Patent #762863 granted to ine .I une I4, 1904 for improvement in coal drills.

The purpose of this invention is to simplify the construction Of the drill mechanism and to provide improvedmeans for engaging and disengaging the operating parts. y

The invention is illustrated in the accompanying drawings to which reference is hereby made and is hereinafter particularly described and finally recited in the claims.

Similar reference letters and numerals designate like parts in the several views.

Figure I. is an elevation of the gear mechanism for a miners drill, part of the shell being shown as broken away, to expose inclosed parts. Fig. 2. is a vertical axial section on the line 2. 2. of Fig. 3, on a reduced scale showing a portion of the auger in eleva tion. Fig. 3. is a vertical transverse section througlrthe drill on the Zig-Zag line 3. 3. of Fig. 2. Fig. 4. is a transverse section on the line 4. 4. of Fig. l. and Fig. 5 is an `en- .larged elevation of the right hand end of the machine.

The shell inclosing the mechanism is of cast iron and comprises a right-hand member A and a left-hand member A connected together by bolts a or equivalent connecting devices.

Trunnions a on the members A and A serve to support the shell on a tripod or other suitable support, not shown. I

A circular' plate B is intermediate of the members A and A and is securely connected therewith by the bolts a and has in one face a circular groove b in which balls O travel freely'.

The auger D turns within the shell and has longitudinal channels d in which internal feathers e* on the hub e fit.

The combined spur and bevel wheel E turns within the shell and has an integral hub e accommodating the auger D.

The cog wheel F turns within the member A and has an integral hub accommodating the auger D and a perforated diaphragm f engaging the spiral of the auger and also has in one face a circular' groove f accommodating balls O which travel in the groove f and in a.

corresponding groove in the inner face of the member A. A shaft G turns and slides in suitable openings ai in the members A and A. A spur pinion II is secured on the shaft G and has a clutch member h. A spur pinion I( turns on the shaft G and has a clutch member l' with which the clutch member lzv of the pinionI'I engages. ,Plates M and M turn on stud screws 'm connecting the plates with the members A and A respec tively and are adapted to lie across the path of the shaft G and limit longitudin-.d movement of the shaft as hereinafter explained.

In Fig. 2. the plate M is shown lying across the path of the shaft G so as to prevent the moving of the shaft to the right. If the plate M be turned to withdraw it from the path of the shaft the shaft may be slid to the right and the wheel H being fixed on the shaft G the sliding of the shaft to the right will disengage the clutch member h from the clutch member Ic and leave the wheel I( free to turn on the shaft G. \\'hcn the shaft is moved to the right as described the plate M* will be turned to lic across the path of the shaft at the left hand end of the shaft and will prevent the shaft from again moving to the left until the plate M1 is removed from the path of the shaft.

When the pinion II is disengaged `from the pinion li the latter will be free to turn and permit free turning of the wheel F.

The wheel E and the pinion I'I and the wheel F and the pinion K are so proportioned that the wheel F will move slightly slower than the wheel E. This difference in speed is attained by giving the pinions I-I and K the same number of teeth and giving the wheel E one tooth more than the wheel F.

When the pinions II and K are in clutch, the turning of the shaft N will cause the bevel pinion N to drive the wheel E and the feathers c fitting in the channels of the auger D will cause the auger to turn, and the auger will be gradually forced lengthwise through the hubs of the wheels E and F by the diaphragm f acting on the spiral of the auger as explained in my Patent #762863.

If it be desired to withdraw the auger, the shaft G will be slid to the right to disengage the pinion Ii, whereupon if the auger be pulled lengthwise through the hubs of the wheels E and F the longitudinal movement of the auger will cause the turning of the wheel F and the pinion K by reason of the diaphragm f sliding on the spiral of the auger, and the wheel F and the pinion K both being free to turn, the auger may be easilyand quickly withdrawn.

Balls O fitting in the circular grooves of the wheel F and the plate B and the balls Vl fitting in the circular grooves of the member A and the wheel F facilitate the turning of the wheels.

The intermediate plate B having a circular groove as described serves a double purpose viz, it accommodates the balls for the ball-bearing and also serves to prevent displacement of the pinion K; that is to say if the Wheels H Were slid to the right and the clutch member h should stick on the clutch member c the pinion K might be caused to slide to the right out of its proper position, but the pinion K being between the member A and the plate B, the member A prevents movement oi the pinion to the left and the plate B prevents movement of the pinion to the right.

On the member A is a projecting lug a3 Which supports the free end of the plate M When the plate lies across the path of the shaft Gr as shown in Fig. 2.

When the drill is in place on the tripod the plate M/ gravitates across the path oi the shaft G.

If it 4be desired to move the shaft G to the right todisengage the clutch members of the pinions H and K, the plate M Will be turned to Withdraw it from the path of the shaft G and the shaft will then be pushed p to the right by hand and the plate M Will gravitate across the path of the shaft and prevent the shaft from being moved to the left until the plate M/ is again turned out of the Way oi the shaft.

To move the shaft G to the left and bring into engagement the clutch members of the pinions H and i K, this procedure Will be reversed.

Having fully described my invention what I claim as new and'desire to secure by Letters Patent is 1. In a miner`s drill the combination of shell members, a grooved circular plate intermediate of and secured to the shell members, a grooved Wheel turning Within the shell members, and balls fitting in the grooves of the grooved wheel and the intermediate plate.

2. In a miners drill the combination of connected shell members, a shaft turning and sliding- Within the shell members, a pinion secured on said shaft and having a clutch member, a pinion loose on said shaft and having a clutch member matching the clutch member of the first named pinion, and plates contiguous to the ends of said shaft and movable to lie across'the path thereof.

In a miners drill the combination of a shell, 0scillative plates mounted on the shell, a shaft slidable and turnable in the shell, a pinion fixed on the shaft and having' a clutch member, a pinion loose on the shaft and havingr a clutch member matching the clutch member of the .first named pinion, and differential gear Wheels Within the shell cooperating,l with said pinions respectively.

4. In a miners drill the combination of a shell, an intermediate plate fixed within the shell, a spur wheel turningl Within the shell between the intermediate plate and one side ot' the shell, a shaft turnable Within and slidable across the shell, a pinion fixed on said shaft and having a clutch member, a pinion loose on said shaft and turningl between the intermediate plate and one side of the shell :ind having a clutch member matching the clutch member of the first named pinion, said intermediate plate serving to prevent sliding of said last named pinion.

ln witness whereof l have hereunto subscribed my name at Springfield this 31st day of' January 1907.

GEORGE F, WEISS.

Witnesses O. A. Maintien, CLARA MCKEE. 

